    package com.atguigu.java.ai.langchain4j.bean;

    import lombok.AllArgsConstructor;
    import lombok.Data;
    import lombok.NoArgsConstructor;
    import org.bson.types.ObjectId;
    import org.springframework.data.annotation.Id;
    import org.springframework.data.mongodb.core.mapping.Document;

    @Data
    @AllArgsConstructor
    @NoArgsConstructor
    @Document("chat_messages")
    public class ChatMessages {
        //唯一标识，映射到 MongoDB 文档的 _id 字段
        @Id
        private ObjectId messageId;

        private String memoryId;

        //private Long messageId;
        private String content; //存储当前聊天记录列表的json字符串
    }